Klum and her daughters Leni and Lou make a colorful appearance in Beverly Hills. Plus: Kim & Mason, Katy Perry, Lady Gaga and more

BAND TOGETHER

Yoko Ono gets a welcome visitor – Lady Gaga! – during her We Are Plastic Ono Band's concert at the Orpheum Theatre in L.A. on Saturday. "What a legendary band+mother," Gaga Tweeted during the performance commemorating late Beatle John Lennon's 70th birthday.